US2934438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preservation process with alkyl guanidines
Assignee: Individual
•
Filing: 1958-03-20
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Granted: 1960-04-26
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Expires: 1978-03-20
Abstract
No abstract record available.
Inventors
- 👤 Michener Harold David
- 👤 James C Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:51
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/70; A23B2/725; A23B2/729; A23B2/762
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A PROCESS FOR PRESERVING A FOODSTUFF NORMALLY SUBJECT TO MICROBIAL SPOILAGE WHICH COMPRISES INCORPORATING AN ALKYL GUANIDINE THEREWITH IN PROPORTION ABOUT FROM 50 TO 1000 P.P.M., AND SUBJECTING THE RESULTING SUBSTANCE TO HEAT AT A TEMPERATURE AND A TIME SUFFICIENT TO PRODUCE AN ESSENTIALLY STERILE SUBSTANCE, THE COMBINATION OF TEMPERATURE AND TIME OF HEATING BEING SUBSTANTIALLY LESS THAN WOULD BE REQUIRED TO ATTAIN STERILITY IN THE ABSENCE OF SAID ALKYL GUANIDINE.
Claim 2
Dependent Claim
71 words
A PROCESS FOR PRESERVING A FOODSTUFF NORMALLY SUBJECT TO MICROBIAL SPOILAGE WHICH COMPRISES INCORPORATING AN ALKYL GUANIDINE THEREWITH IN PROPORTION ABOUT FROM 50 TO 1000 P.P.M., AND SUBJECTING THE RESULTING SUBSTANCE TO HEAT AT A TEMPERATURE AND A TIME SUFFICIENT TO PRODUCE AN ESSENTIALLY STERILE SUBSTANCE, THE COMBINATION OF TEMPERATURE AND TIME OF HEATING BEING SUBSTANTIALLY LESS THAN WOULD BE REQUIRED TO ATTAIN STERILITY IN THE ABSENCE OF SAID ALKYL GUANIDINE.
References Cited (Backward Citations)
US2213474A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |